Mathematics High School

Solve by Elimination:
x - 2y = 4
X - 1y = 2


its urgent

Answers

Answer 1

Answer:

x = 0 and y = -2

Step-by-step explanation:

x - 2y = 4 and X - 1y = 2

you mentioned elemination aka substraction

so you when substract x - x =  0  -2y -( -y) = -y and 4 -2 = 2

so - y = 2

or y = 2

now substitute the numbers

x + 4 = 4

x = 0

and try it with one of the equation  or sometimes trying on both of them can be very helpful

Related Questions

The perimeter of triangle ABC is 96. Find the value of x. 4x + 1 2x 3x + 2 perimeter of ABC = 96
​

Answers

Answer:

4.5is answer

Step-by-step explanation:

perimeter of ABC = 96

4x + 1 2x 3x + 2=96

21x=96

x=96/21=4.5

HELLP ILL GIVE ALL MY POINTS IF SOMEONE HELPS The ratio of bows to headbands of Monique’s hair accessories is 8:4.

Select all true statements.




For every 8 hair accessories, 4 are bows.


For every 8 bows, there are 4 headbands.


For every 8 headbands, there are 4 bows.


For every 8 hair accessories, 4 are headbands.


For every 12 hair accessories, 4 are headbands.

Answers

Answer:

Its a

Step-by-step explanation:

Answer:

B and D I think

Explaination:

its bows to hair so its 8:4

and add head bands to bows thats 12

12:4

( all to headbands)

Hope it make sense

. What is the value of x
please help

Answers

Answer:

9

Step-by-step explanation:

12x + 17x - 14 + 90 + 2x + 5 = 360

31x + 81 = 360

31x = 279

x = 9

0
o
C
-10
-5
-5
0
5
10
-5

Answers

Answer:

its -10

Step-by-step explanation:

NO explain needed

Is my answer right? if not can you please show me the correct answer

Answers

No it is a =9 is correct

Answer: No, is a=9

Step-by-step explanation:

plz answer all of them

Answers

Answer:

ace

Step-by-step explanation:

Answer:

See attached

Step-by-step explanation:

Solution in the picture

At a zoo, the price of 4 adult tickets and 6 child tickets is $77.The price of 6 adult tickets and 4 child tickets is $83. What is the ticket price for one adult and for one child?

Answers

Answer:

the cost of 1 child ticket is $6.5 and the cost of 1 adult ticket is $9.5

Step-by-step explanation:

Given that:

the price of 4 adult tickets & 6 child tickets = $77

the price of  6 adult tickets & 4 child tickets = 83

then the price of 1 adult ticket and 1 child ticket will be:

Let assume that the cost of 1 adult ticket to be $p

Then;

the cost of 4 adult ticket = $4p

Similarly, the cost of 6 adult ticket = $6p

However, assuming that the cost of 1 child ticket is $q

Then;

the cost of 6 child ticket = $6q

the cost of 4 child ticket = $4q

∴

We can express them with their given prices that:

4p + 6q = 77    --- (1)

6p + 4q  = 83   --- (2)

From equation (1), let 4p = 77 - 6q

Then; [tex]p = \dfrac{77 - 6q}{4}[/tex]

replace the value of p into equation (2)

∴

[tex]6 \Big ( \dfrac{ 77 - 6q }{4}\Big) + 4q = 83[/tex]

[tex]\dfrac{462 - 36q}{4}+ 4q = 83[/tex]

[tex]115.5 - 9q + 4q = 83 \\ \\ 115.5 -5q= 83 \\ \\ 115.5 - 83 = 5q \\ \\ 32.5 = 5q[/tex]

[tex]q= \dfrac{32.5}{5}[/tex]

q = 6.5

Since q = 6.5, then using equation (1)

4p + 6(6.5) = 77

4p +39 = 77

4p = 77 -39

4p = 38

p = 38/4

p = 9.5

Thus, the cost of 1 child ticket is $6.5 and the cost of 1 adult ticket is $9.5

Help pls (pls dont write absolute nonsense on here pls i really need help)

Answers

A) -2fg b) not sure sorry c) f-x

21.57 x 0.12 =
Divided by a power of 10

Answers

Answer:

Answer vary :

0.25884

Step-by-step explanation:

honestly in my opinion that’s the answer.

1. 21.57 times 0.12 = 2.5884

then divide 2.5884 by the power of ten, wich is moving the decimal to left with how many zeros their are.

-0.25884

since in 10 their is only one 0 we moved the decimal only one time to the left.

and that’s how I came to that solution.

Anais bought 4 1/2 yards of ribbon. She had 3 feet 8 inches of ribbon left after trimming some curtains. How many inches of ribbon did anais use to trim the curtains

Answers

Answer:

First convert all numbers into inches since that is the answer being solved for.

1 yard =36 inches

4.5 x 36 = 1,620 inches

1 foot = 12 inches

3 x 12 = 36 inches

36 + 8 = 44 inches

Now take 1,620 inches (starting ribbon measure) and subtract 44 inches (what was left over) to get the inches used to trim curtains.

1,620 inches - 44inches =

1,576 inches were used to trim the curtains.

Step-by-step explanation:

Brainly highly appreciated <3

1 Which expression is equivalent to 4 − (−7)?


A 7 + 4


B 4 − 7


C −7 − 4


D −4 + 7

Answers

Answer:

The answer is A

Step-by-step explanation:

4−(−7)

=4−(−7)

=4+7

=11

Gabriela was solving an equation, but when she checked her answer, she saw solution was incorrect . She knows she made a mistake, but she can’t find it.

Answers

Answer:

The distribution at the 2nd line

Step-by-step explanation:

I believe where Gabby went wrong was in her multiplication distribution

12*5=60 not 72

hope this helps!!

The value of y form the given equation is -65/11. Gabriela did mistake in second step while multiplying 12 and 5 and - sign into a bracket.

The given equation is 12(5+2y)=4y-(5-9y).

What is an equation?

In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

The given equation can be solved as follows:

12(5+2y)=4y-(5-9y)

⇒ 60+24y=4y-5+9y

⇒ 60+24y=13y-5

⇒ 24y-13y=-5-60

⇒ 11y=-65

⇒ y=-65/11

Therefore, the value of y form the given equation is -65/11. Gabriela did mistake in second step while multiplying 12 and 5 and - sign into a bracket.

To learn more about an equation visit:

https://brainly.com/question/14686792.

#SPJ5

V70





Estimate the square root of the number below to the nearest tenth

Answers

8.4 hope that helps
It’s 777777777777777222222222.000002020202020202202020202020

2/5 divided by 4 and reduce the answer

Answers

Answer:

1/10 i guess

Step-by-step explanation:

2/5=0.4

0.4/4=0.1

0.1=1/10 (one tenth_

Answer:

1/10

Step-by-step explanation:

2/5 ÷4 is the same as 2/20, which is 1/10

Evaluate the following expression. Round to the nearest hundredth when necessary.
27

Answers

Answer:

27?

Step-by-step explanation:

27 is a whole number you know

Of the 10 clients who had their hair cut at Sue's salon last month, 5 had blond hair. Considering this data, how many of the next 14 clients to get haircuts should you expect to have blond hair?

Answers

Answer: 7 clients

Step-by-step explanation:

Of the last 10 clients that cut their hair at the salon, 5 had blond hair.

That is a proportion of:

= 5 / 10

= 1/2

Assuming this same proportion applies to the next clients Sue gets, the expected number of blonde people will be:

= Number of clients * 1/2

= 14 * 1/2

= 7 clients

I need help with this math work

Answers

B because when you plus the minus numbers you still minus it

please help solve for x ................................................................

Answers

Answer:

104°+33°+(5x+13)°=180°[all angle sum is 180°]

137°+(5x+13)=180°

137°+13+5x=180°

150°+5x=180°

5x=180°-150°

5x=30

x=30/5

×=6

Answer:

x = 6

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

Sum the 3 angles and equate to 180

5x + 13 + 104 + 33 = 180, that is

5x + 150 = 180 ( subtract 150 from both sides )

5x = 30 ( divide both sides by 5 )

x = 6

Which value will change most when
13 is added to the data set?
0, 6, 4, 5, 3, 3, 2
A mean
B median
C mode
D outlier

Answers

Answer:

it's the mean bc mode and median will not change and that outlier is the one that's different but they are all diff

A shop advertises 15% off it's prices in the sale.
A purse is £4.42 in the sale.
What was the original price?

Answers

Answer:

5.20

Step-by-step explanation:

100%-15%=85%

85%->4.42

100%->4.2÷85×100=5.20

Everything at a store is on sale for 25% off. The regular price of a jacket is $35.00. What is the discount price?

Answers

Answer:

$26.25

Step-by-step explanation:

35(1-0.25)

= 35(0.75)

= 26.25

Lets get 5% by dividing 35 by 20
Each 5% is 1.75
Need 5 of these so 8.75
Because it is a discount 35-8.75=$26.25

Which of the following statements provides the correct freezing and boiling points of water on the Celsius and Fahrenheit temperature scales

Answers

B provides the correct freezing and boiling points of water

HELPPP PLEASE!!!! HELP

Answers

A1 x=5
2 x=7
3 t=3
B1 x=3
2 x=2
3 z= √6

Write down in terms of n an expression for the nth term of the following sequence
12 16 20 24 28

Answers

Answer:

4n + 8

Step-by-step explanation:

- 5x + 9y = - 32
-5x - 3y = 4

Answers

Answer: look at the picture

Step-by-step explanation: Hope this help :)

If the density of a piece of wood is 0.85 g/cm3, what is the volume if the mass of 24.99 cm3?

Answers

Answer:

to find volume

Step-by-step explanation:

I think so it is like this 24.99/0.85 =29.4

There are 120 cars in a grocery store parking lot. The probability that a car selected at random is white is 18.How many of the cars in the parking lot are white?
A 8
B 15
C 30
D 105

Answers

Answer:D

Step-by-step explanation:

If you subtract 120-18 it is 102 and 105 is the closest feel free to correct me if I'm wrong.

A construction company submitted bids for three contracts. The company estimates that it has a 20%
chance of winning any given bid. Let X represent the number of bids the company wins. Here is the
probability distribution of X along with summary statistics:

X = # of bids won-
0 1 2 3

P(X)-
0.512 0.384 0.096 0.008

Mean: µx=0.6
Standard deviation: σx=0.69

It costs the company a total of $2,000 to submit these bids, and they stand to gain $10,000 for each bid
they win. Let V represent their net gain from submitting these three bids.
What are the mean and standard deviation of V?
µv= ______dollars
σv=_______dollars

Answers

Answer: 4000 dollars

6900 dollars

Step-by-step explanation:

How do you do this C=2πr with π=3.14?

Answers

Answer: C=2*3.14*r

Step-by-step explanation:

You just plug in 3.14 for pi, it's pretty simple

three to the fifth power
answer please​

Answers

Answer:

243

Step-by-step explanation:

Answer:

243

Step-by-step explanation:

Other Questions
My finger pointed towards the house nouns 5) A book is sold at $152.50 and a discount of 9% is given for students.Find the cost of the book.13 SOMEONE PLEASE HELP ME WITH MY HOMEWORK ILL DO ANYTHING FOR HELP BUT JUST PLEASE HELP ME which of these statements was implied by the decision in brown?segregation could lead to feelings of inferioritysegregation often led to relatively equal opportunitiessegregation increased levels of personal determinationsegregation was the purpose of the fourteen amendment please help........... The diagram below shows fossils in three layers of rocks.Which of these conclusions is most likely correct about the organisms found in the layers of rocks? The organism in Layer A is more complex than the organism in Layer B. The organism in Layer B is more complex than the organism in Layer C. The organism in Layer C is a modern form of the organism in Layer B. The organism in Layer A is a modern form of the organism in Layer B. You want to determine what vehicle will get you to school in the fastest amount of time. Each day at 6:30am, you drive a different vehicle: a Ferrari, aNissan 350ZX, a Mazda RX8, and a Neon SRT4. Your results state that the Ferrari takes you the least time to get to school. The dependent variable inthis experimentisA.the time that you leave each day (6:30am)B.the type of vehicleC.the time that it takes you to get to schoolD.the route that you take each day 7 times m help helpp The temperature was recorded at the same time each day,a)Which temperature was the warmest?b)Which temperature was the coldest?c)How much colder was it on Thursday than on Saturday?d)On Sunday the temperature was 5C lower than on Saturday.What was the temperature on Sunday? El t and el t helado are two similiar drinks. What is the difference? Study the statements that follow. Then, identify the statements that (A) assert thatLearning something is true or not, (B) judge whether or not something is good, right or moral,and (C) assert that one course of action should be done or not. Write the letters of yourTask No. 1:answers in your paper.1.1. The Department of Education (DepEd) got the highest allocation for the 2020 National Budget.2. Taking drugs without a doctor's prescription can endanger one's life.3. The use of substantial research in writing is a great way for authors to achieve their purpose.4. It is necessary for stakeholders in the community to support every school in making sure that education continuesfor all learners.5. Honesty is the best policy. At a basketball game, a team made 53 successful shots. They were a combination of 1- and2-point shots. The team scored 90 points in all. Write and solve a system of equations to find thenumber of each type of shot.There were2-point shots and 1-point shots. 6) solve the equation for m Eight bricks are laid end to end along the edge of a flower bed. Each brick is 1 1/2 inches long. How long is the row of bricks, in inches? F Which conditions are sufficient to prove a quadrilateral is a square? 1. All four sides are congruent. II. The diagonals are congruent. III. The diagonals bisect each other. A. l onlyB. l and IIC. l and IIID. ll and III What is one of the most effective ways that artists create space in two-dimensional art?A) shapeB) lineC) formD) perspective Act one Romeo and Juliet Why is the Nurse so close emotionally to Juliet?a. Lady Capulet is very cold and distant from her daughterb. The Nurse helped to raise Juliet since she was bornc. Juliet cares for the Nurse, who is old and feebled. She cared for Juliet as a newborn through her difficult birth and helped to save her life Why do you think the Republican Party gave up on supporting civil rights for African Americans in this era? -4 ( ) = -16-16= -8 ( ) You are watching the Indy 500 car race on television with your brother. He says, "Did you know that these cars race at a speed of over 200 mph? That velocity is amazing!" Having learned that speed and velocity are not the same, you decide to explain the difference to your brother.